diff options
Diffstat (limited to 'drivers/media/video/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 288 |
1 files changed, 144 insertions, 144 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index d7fa896..46fd953 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -183,150 +183,6 @@ static const char *v4l2_memory_names[] = { /* ------------------------------------------------------------------ */ /* debug help functions */ -struct v4l2_ioctl_info { - unsigned int ioctl; - u16 flags; - const char * const name; -}; - -/* This control needs a priority check */ -#define INFO_FL_PRIO (1 << 0) -/* This control can be valid if the filehandle passes a control handler. */ -#define INFO_FL_CTRL (1 << 1) - -#define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \ - .ioctl = _ioctl, \ - .flags = _flags, \ - .name = #_ioctl, \ -} - -static struct v4l2_ioctl_info v4l2_ioctls[] = { - IOCTL_INFO(VIDIOC_QUERYCAP, 0), - IOCTL_INFO(VIDIOC_ENUM_FMT, 0), - IOCTL_INFO(VIDIOC_G_FMT, 0), - IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_QUERYBUF, 0), - IOCTL_INFO(VIDIOC_G_FBUF, 0), - IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_QBUF, 0), - IOCTL_INFO(VIDIOC_DQBUF, 0), - IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_PARM, 0), - IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_STD, 0), - IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_ENUMSTD, 0), - IOCTL_INFO(VIDIOC_ENUMINPUT, 0), - IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_G_TUNER, 0), - IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_AUDIO, 0), - IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_G_INPUT, 0), - IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_OUTPUT, 0), - IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0), - IOCTL_INFO(VIDIOC_G_AUDOUT, 0), - IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_MODULATOR, 0), - IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_FREQUENCY, 0), - IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_CROPCAP, 0), - IOCTL_INFO(VIDIOC_G_CROP, 0), - IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_SELECTION, 0), - IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0), - IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_QUERYSTD, 0), - IOCTL_INFO(VIDIOC_TRY_FMT, 0), - IOCTL_INFO(VIDIOC_ENUMAUDIO, 0), - IOCTL_INFO(VIDIOC_ENUMAUDOUT, 0), - IOCTL_INFO(VIDIOC_G_PRIORITY, 0), - IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, 0), - IOCTL_INFO(VIDIOC_LOG_STATUS, 0), - IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL), - IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0), - IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, 0), - IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, 0), - IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0), - IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, 0), - IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0), -#ifdef CONFIG_VIDEO_ADV_DEBUG - IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0), - IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0), -#endif - IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0), - IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0), - IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_DV_PRESET, 0), - IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0), - IOCTL_INFO(VIDIOC_S_DV_TIMINGS, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0), - IOCTL_INFO(VIDIOC_DQEVENT, 0), - IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0), - IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0), - IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO), - IOCTL_INFO(VIDIOC_PREPARE_BUF, 0), - IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0), - IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0), - IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0), -}; -#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) - -bool v4l2_is_known_ioctl(unsigned int cmd) -{ - if (_IOC_NR(cmd) >= V4L2_IOCTLS) - return false; - return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; -} - -/* Common ioctl debug function. This function can be used by - external ioctl messages as well as internal V4L ioctl */ -void v4l_printk_ioctl(unsigned int cmd) -{ - char *dir, *type; - - switch (_IOC_TYPE(cmd)) { - case 'd': - type = "v4l2_int"; - break; - case 'V': - if (_IOC_NR(cmd) >= V4L2_IOCTLS) { - type = "v4l2"; - break; - } - printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name); - return; - default: - type = "unknown"; - } - - switch (_IOC_DIR(cmd)) { - case _IOC_NONE: dir = "--"; break; - case _IOC_READ: dir = "r-"; break; - case _IOC_WRITE: dir = "-w"; break; - case _IOC_READ | _IOC_WRITE: dir = "rw"; break; - default: dir = "*ERR*"; break; - } - printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", - type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); -} -EXPORT_SYMBOL(v4l_printk_ioctl); - static void dbgbuf(unsigned int cmd, struct video_device *vfd, struct v4l2_buffer *p) { @@ -536,6 +392,150 @@ static int check_fmt(const struct v4l2_ioctl_ops *ops, enum v4l2_buf_type type) return -EINVAL; } +struct v4l2_ioctl_info { + unsigned int ioctl; + u16 flags; + const char * const name; +}; + +/* This control needs a priority check */ +#define INFO_FL_PRIO (1 << 0) +/* This control can be valid if the filehandle passes a control handler. */ +#define INFO_FL_CTRL (1 << 1) + +#define IOCTL_INFO(_ioctl, _flags) [_IOC_NR(_ioctl)] = { \ + .ioctl = _ioctl, \ + .flags = _flags, \ + .name = #_ioctl, \ +} + +static struct v4l2_ioctl_info v4l2_ioctls[] = { + IOCTL_INFO(VIDIOC_QUERYCAP, 0), + IOCTL_INFO(VIDIOC_ENUM_FMT, 0), + IOCTL_INFO(VIDIOC_G_FMT, 0), + IOCTL_INFO(VIDIOC_S_FMT, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_REQBUFS, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_QUERYBUF, 0), + IOCTL_INFO(VIDIOC_G_FBUF, 0), + IOCTL_INFO(VIDIOC_S_FBUF, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_OVERLAY, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_QBUF, 0), + IOCTL_INFO(VIDIOC_DQBUF, 0), + IOCTL_INFO(VIDIOC_STREAMON, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_STREAMOFF, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_PARM, 0), + IOCTL_INFO(VIDIOC_S_PARM, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_STD, 0), + IOCTL_INFO(VIDIOC_S_STD, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_ENUMSTD, 0), + IOCTL_INFO(VIDIOC_ENUMINPUT, 0), + IOCTL_INFO(VIDIOC_G_CTRL, INFO_FL_CTRL), + IOCTL_INFO(VIDIOC_S_CTRL, INFO_FL_PRIO | INFO_FL_CTRL), + IOCTL_INFO(VIDIOC_G_TUNER, 0), + IOCTL_INFO(VIDIOC_S_TUNER, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_AUDIO, 0), + IOCTL_INFO(VIDIOC_S_AUDIO, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_QUERYCTRL, INFO_FL_CTRL), + IOCTL_INFO(VIDIOC_QUERYMENU, INFO_FL_CTRL), + IOCTL_INFO(VIDIOC_G_INPUT, 0), + IOCTL_INFO(VIDIOC_S_INPUT, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_OUTPUT, 0), + IOCTL_INFO(VIDIOC_S_OUTPUT, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_ENUMOUTPUT, 0), + IOCTL_INFO(VIDIOC_G_AUDOUT, 0), + IOCTL_INFO(VIDIOC_S_AUDOUT, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_MODULATOR, 0), + IOCTL_INFO(VIDIOC_S_MODULATOR, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_FREQUENCY, 0), + IOCTL_INFO(VIDIOC_S_FREQUENCY, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_CROPCAP, 0), + IOCTL_INFO(VIDIOC_G_CROP, 0), + IOCTL_INFO(VIDIOC_S_CROP, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_SELECTION, 0), + IOCTL_INFO(VIDIOC_S_SELECTION, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_JPEGCOMP, 0), + IOCTL_INFO(VIDIOC_S_JPEGCOMP, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_QUERYSTD, 0), + IOCTL_INFO(VIDIOC_TRY_FMT, 0), + IOCTL_INFO(VIDIOC_ENUMAUDIO, 0), + IOCTL_INFO(VIDIOC_ENUMAUDOUT, 0), + IOCTL_INFO(VIDIOC_G_PRIORITY, 0), + IOCTL_INFO(VIDIOC_S_PRIORITY, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_SLICED_VBI_CAP, 0), + IOCTL_INFO(VIDIOC_LOG_STATUS, 0), + IOCTL_INFO(VIDIOC_G_EXT_CTRLS, INFO_FL_CTRL), + IOCTL_INFO(VIDIOC_S_EXT_CTRLS, INFO_FL_PRIO | INFO_FL_CTRL), + IOCTL_INFO(VIDIOC_TRY_EXT_CTRLS, 0), + IOCTL_INFO(VIDIOC_ENUM_FRAMESIZES, 0), + IOCTL_INFO(VIDIOC_ENUM_FRAMEINTERVALS, 0), + IOCTL_INFO(VIDIOC_G_ENC_INDEX, 0), + IOCTL_INFO(VIDIOC_ENCODER_CMD, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_TRY_ENCODER_CMD, 0), + IOCTL_INFO(VIDIOC_DECODER_CMD, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_TRY_DECODER_CMD, 0), +#ifdef CONFIG_VIDEO_ADV_DEBUG + IOCTL_INFO(VIDIOC_DBG_S_REGISTER, 0), + IOCTL_INFO(VIDIOC_DBG_G_REGISTER, 0), +#endif + IOCTL_INFO(VIDIOC_DBG_G_CHIP_IDENT, 0), + IOCTL_INFO(VIDIOC_S_HW_FREQ_SEEK, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_ENUM_DV_PRESETS, 0), + IOCTL_INFO(VIDIOC_S_DV_PRESET, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_DV_PRESET, 0), + IOCTL_INFO(VIDIOC_QUERY_DV_PRESET, 0), + IOCTL_INFO(VIDIOC_S_DV_TIMINGS, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_G_DV_TIMINGS, 0), + IOCTL_INFO(VIDIOC_DQEVENT, 0), + IOCTL_INFO(VIDIOC_SUBSCRIBE_EVENT, 0), + IOCTL_INFO(VIDIOC_UNSUBSCRIBE_EVENT, 0), + IOCTL_INFO(VIDIOC_CREATE_BUFS, INFO_FL_PRIO), + IOCTL_INFO(VIDIOC_PREPARE_BUF, 0), + IOCTL_INFO(VIDIOC_ENUM_DV_TIMINGS, 0), + IOCTL_INFO(VIDIOC_QUERY_DV_TIMINGS, 0), + IOCTL_INFO(VIDIOC_DV_TIMINGS_CAP, 0), +}; +#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls) + +bool v4l2_is_known_ioctl(unsigned int cmd) +{ + if (_IOC_NR(cmd) >= V4L2_IOCTLS) + return false; + return v4l2_ioctls[_IOC_NR(cmd)].ioctl == cmd; +} + +/* Common ioctl debug function. This function can be used by + external ioctl messages as well as internal V4L ioctl */ +void v4l_printk_ioctl(unsigned int cmd) +{ + char *dir, *type; + + switch (_IOC_TYPE(cmd)) { + case 'd': + type = "v4l2_int"; + break; + case 'V': + if (_IOC_NR(cmd) >= V4L2_IOCTLS) { + type = "v4l2"; + break; + } + printk("%s", v4l2_ioctls[_IOC_NR(cmd)].name); + return; + default: + type = "unknown"; + } + + switch (_IOC_DIR(cmd)) { + case _IOC_NONE: dir = "--"; break; + case _IOC_READ: dir = "r-"; break; + case _IOC_WRITE: dir = "-w"; break; + case _IOC_READ | _IOC_WRITE: dir = "rw"; break; + default: dir = "*ERR*"; break; + } + printk("%s ioctl '%c', dir=%s, #%d (0x%08x)", + type, _IOC_TYPE(cmd), dir, _IOC_NR(cmd), cmd); +} +EXPORT_SYMBOL(v4l_printk_ioctl); + static long __video_do_ioctl(struct file *file, unsigned int cmd, void *arg) { |
